If you are using VU7C with ribbon cable (especially more that 3ft), and you are facing this issue:
Or this one:
This is due to I2C bus specifications, more information from my friend mctom here, thanks to him.
So to prevent this, we can use LTC4311 chip to enhance data transmission speed and reliability for I2C bus.
Here is signal with and without use of LTC4311 chip:
I have designed a small pcb board, to fit between VU7C screen and N2.
3D model of header is false, pins are longer in reality.
Will order some pieces and place a link soon.
